html,body{
    height: 98%;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url("../images/login_bg.png");
    background-size: cover;
    /*background-color: #009688;*/
}
.layui-container {
    width: 100%;
    height: 100%;
    overflow: hidden
}
.admin-login-background {
    width:360px;
    height:300px;
    position:absolute;
    left:50%;
    top:40%;
    margin-left:-180px;
    margin-top:-100px;
}
.logo-title {
    text-align:center;
    letter-spacing:2px;
    padding:14px 0;
}
.logo-title h1 {
    color:#009688;
    font-size:25px;
    font-weight:bold;
}
.login-form {
    background-color:#fff;
    border:1px solid #fff;
    border-radius:3px;
    padding:14px 20px;
}
.login-form .layui-form-item {
    position:relative;
}
.login-form .layui-form-item label {
    position:absolute;
    left:1px;
    top:1px;
    width:38px;
    line-height:36px;
    text-align:center;
    color:#d2d2d2;
}
.login-form .layui-form-item input {
    padding-left:36px;
}
.captcha {
    width:63%;
    display:inline-block;
}
.captcha-img {
    display:inline-block;
    width:36%;float:right;
}
.captcha-img img {
    height:34px;
    border:1px solid #e6e6e6;
    height:36px;
    width:98%;
}